Trevor Bauer was supposed to be the Diamondbacks' secret weapon in their quest to repeat as NL West champions in 2012. Their rotation was pretty much set, but Josh Collmenter was in a precarious spot, always one bad start away from losing his job.
Collmenter did lose his job, and the Diamondbacks did end up giving a rotation spot to a rookie, and the rookie did make the All-Star Game. That rookie was Wade Miley. As for Bauer? Things didn't quite go as planned, and after four starts, he's back in the minors.
D-Backs announce Trevor Bauer sent back to AAA Reno— DKnobler (@DKnobler) July 18, 2012
Bauer was 1-2 over four starts with a 6.06 ERA. His four starts were something of a caricature of what you should have expected, as he struck out 17 in 16 innings, but he also walked 13. And with that, Collmenter is back in the rotation, most likely. It never works quite as neatly as you think it will.